I was wondering if it would be possible to create a custom post with different custom fields so that if a download document used in many pages changes the user can come here to update the name.
In other words, if the document sitting in www.web.com/uploads/catalog2012.pdf is upgraded to catalog2013.pdf, the user would be able to change the document name here.
Thanks in Advance,
Mauro
Post meta data are for posts only. You should not create a new post type to use custom options.
There is a dedicated Options API for that use case. Create an options page and let the user update the option there.